A presentation on the use of inorganic minerals as semi-reinforcing fillers for light coloured rubber applications.  It will focus on hydrous clays; calcined clays; and surface treated clays as well as ball clays for specific applications.  Discussions around development grades for improved performance will be covered including the use of engineered ultrafine calcined clay for better reinforcement; tailored kaolins as char promoters in EVA HFFR cables; hyper platey minerals for reduced permeability and the next generation of surface treated grades for better electrical performance in cables